Baby bottle



A. HERSTEIN Dec. 24, 1935.

BABY BOTTLE Filed Deo. 17, 1934 lPatented Dec. 24, 1935 PATENT OFFICE BABY BOTTLE Abe Herstein, Chicago, Ill., assignor to William Fusske and himself, both joint-trustees of Chicago, Ill., as

Application December 1'7, 1934, Serial No. 757,832

10 Claims.

My invention relates to baby bottles and more particularly to an improved bottle nipple and cap for baby bottles.

It is the principal purpose of this invention to provide a novel fastening means whereby the nipple may be securely fastened to the bottle in such a Way as to prevent their separation except by unscrewing a screw cap on the bottle.

It is also a purpose of the invention to provide a -device of this character wherein the rubber portion of the nipple may be readily separated from the screw cap for sterilizing purposes, and the nipple may be again mounted on the cap Without encountering the difficulty of expanding the nipple over the bottle.

Further it is a purpose of my invention to provide a novel cap and nipple combination for baby bottles in which the cap so grips the nipple to the bottle as to cause the lower edge of the nipple to fit closely against the inner corner of the bottle and provide a smooth even surface for the flow of the liquid from the bottle to 'the nipple.

Other and more specific objects and advantages of the invention will appear as the description proceeds in connection with the accompanying drawing. It is to be understood, however, that the drawing and description are illustrative only and are not to be taken as limiting the invention except in so far as it is limited by the claims.

In the drawing- Fig. 1 is a vertical sectional View through the top of a bottle and a nipple embodying my invention; l

Fig. 2 is a similar sectional view showing a slightly different form of construction; and

Fig. 3 is a vertical sectional view showing a further modified form of construction.

Referring now in detail to the drawing, the bottle 5 has a neck portion indicated by the numeral 6 upon which the cap l is adapted to be screwed, the cap and bottle being provided with the usual screw threads. This cap l may be constructed of any of the commercial materials suitder Il), there is provided a neck portion I I of the Y nipple which neck portion extends down and Y joins the collar portion I2. This collar I2, as shown in Fig. 1, is set at an angle on the neck portion II so as to extend upwardly and outwardly. 5

The top I3 of the bottle neck 6 is bevelled in Fig. 1 so as to slope downwardly toward the center of the neck. Similarly, the lower surface I4 of the flange 3 is bevelled to slope downwardly toward the center of the bottle neck, but the 10 surface I4 makes a somewhat greater angle with the horizontal than the top of the bottle I3.

Thus, when the cap is screwed down upon the bottle neck, the collar I2 is pinched at the inner edge between the bottle top and the edge of the l5 cap surrounding the neck I I.

The reason for this particular structure is twofold. In the rst place, it prevents the collar I2 from slipping out from between the two surf'aces I3 and I4 when the pressure is applied. In 20 the second place, this pinching of the collar at the point where it joins the neck II together with the little hollowed out groove I5 tends to draw the nipple down into the cap and bottle as the cap is tightened on the bottle. 25

Since the edges of bottles are almost invariably rounded, this is of particular advantage in causing the tip I6 to be drawn down snugly against the bottle. The inner surface of neck II curves outwardly as shown at I'I toward the tip I6 to 30 bring this tip almost in alignment with the inner wall of the bottle neck. When the pressure is applied by means of the cap upon the collar I2, the effect is to cause the lower surface of the collar I2 to creep outwardly on the surface I3 as 35 the little groove I5 is brought down against the curved edge of the bottle neck. This action draws the tip I 6 tightly against the bottle and provides a comparatively smooth even surface Where the nipple joins the bottle so as not to obstruct 40 the flow from the bottle into the nipple.

The length of the neck I I between the shoulder I0 and the collar I2 is at least equal to the width of the collar I2 plus the thickness of the cap flange 8 at its inner edge so that, when the nip- 45 ple is being inserted in the cap, the collar I2 which folds up around the outside of the neck -I I will extend through the hole in the cap and snap out into the position shown in Fig. 1. Since the shoulder I0 is quite thick immediately above the 50 neck I I, it gives sufficient strength to the nipple at this point to permit the nipple being forced into the cap, and the lower edges of the shoulder It) spread outwardly and yield enough for the insertion of the nipple in the cap. After the nipple is once inserted in the cap, It is obvious how the cap and nipple are secured to the bottle.

It will be noted that the tip I at the inner edge of the collar I2 extends down slightly below the line of the lower surface of this collar so that it will Voverlap the rounded inner edge at the top of rthe bottle neck.

Referring now to Fig. 2, in this case, the structure is identical with Fig. 1 and the function the same except for certain changes which I will now describe.

In the first place, the top of the flange 8 in Fig. 1 is sloped downward slightly toward. the center while the flange 8 in Fig. 2` is straight across on the top. Also in Fig. 2 the collar I2 and the top of the bottle at I3 run practically horizontal. The under surface I4 of the cap is bevelled to slope downwardly toward' the center, but, since the top of the bottle neck is. flat, this bevel is not so pronounced. The groove I5, neck II, tip I6, and curved surface I'I are precisely the same in Fig. 2 as in Fig. 1, andthe operation of the device is exactly the same. It will be noted, however, that in the case of Fig. 1 a specialbottle top is required, while in Fig. 2 a nipple andv cap may bettedonto a standard bottle which hasa flat top surface.

Referring now to Fig. 3, in this case the dis.- tinction made over the structure shown in Fig.

. A2 lies in the fact that the neck II is made of a relatively stiff or hard rubber and connects the main body portion of the nipple and the shoulders I0 with the collar I2" which may be precisely the same in structure as that shown inFig.

i 2 except that it is secured onto the bottom of the hard rubber piece II".

By specifying that the neck II is hard-rubber, I doV not mean to infer that the neck must be rigid, but, that itis considerably stiffer than the soft rubberV used for the nipple and the collar I2. piecesthat is, the nipple proper, the neck II, and the collar I2-a re molded or'vulcanized or cemented together so as to be in effect one piece.

The structure shown in Figs. 2 and 3 permits the mounting of the nipple in the cap IA in precisely the same way as in Fig. l except that in Fig. 3 the stiff rubber portion of the neck makes a little more sturdy structure.

From the above description, it isY believed that Vthe construction and advantages of this device l. In combination, a bottle having the top edge thereof bevelled to slope downwardly toward the center, a cap having a central aperture in theftop and having the top portion around said aperture also bevelled to slope downwardly on the under surface, a nipple having an upwardly and outwardly extending collar engaging the under surface of said cap and clamped between the cap and the bottle neck, said nipple having a relatively stiff insert extending downwardly into said cap and joining said collar.

`2. A cap and nipple combination for screw threading onto a bottle, comprising a cap having a top flange the lower surface of which is bevelled to slope downwardly toward the center, a nipple having a neck portion extending through said cap, said nipple having an annular ange at the lower end of the neck portion, and a thickened portion extending' downwardly and outwardly from the top of the neckportion to.A rest on. top

Of course, the three lower end of the neck portion,V and a thickened portion extending downwardly and outwardly from the top of the neck portion to rest on top of the cap, the flange on said nipple having in the lower surface thereof an annular groove directly opposite the inner edge of the cap ange,

said nipple having a downwardly extending lip at the edge thereof.

4. In combination, a bottle cap adapted to be screw threaded upon a bottle neck, said cap vhaving an aperture in the top thereof and having an inwardly directed flange atl the top thereof, the under surface of said flange being sloped downwardly toward the aperture, a nipple having. a neck portion extending through the aperture of said cap, a shoulder portion at the top end. of s said neck portion extending downwardly andA outwardly to engage the cap, and a collar portion at the lower end of the neck portion extending4A outwardly therefrom to be gripped betweenathe cap flange and the top ofv the bottle neck, said p;

collar being reduced in thickness directly beneath the inner edge of the cap` fiange, and having. a downturnedr lip at its extreme inner edgefor engaging inthe bottle neck.

5. In combination, a bottle cap adapted to be: y

screw threaded upon a bottle neck, said cap having an aperture in the topthereof and having anv inwardly directed flange at the top thereof, they under surface-of said. flange being` slopedV down-A wardly toward the aperture, a nipplexhaving a. 4055;

neck portion extending through the aperture of said cap, a shoulder por-tion at the top end of said neck portion extending downwardly and. outwardly to engage the cap, and a collar portionat the lower end of the neckportion extending out-v 4.5;i

wardly therefrom toiiibe gripped between the cap; flange. and the top of a bottle neck, saidineck. portion of the nipple being of a substantially stiffer material thanl the remainder thereof.

6. In combination, a bottle cap'adapted to beloof:

screw threaded upon a bottle neck, said cap. having an aperture in the top thereof andhaving an inwardlyl directedI flange at the; topl thereof,;the under surface of said flange'. being sloped downwardly toward the aperture, a nipple having` a 551i?` neck portion extending through the'aperture of said cap, a shoulder portionat the top end of said neck portionextending downwardly and outwardly to engage the cap, and a collar portion atv the lower end of the neckportionextending outwardly therefrom to be grippedbetween, the. capV fiange and the top .of a bottle neck,the length of" the neck portionbeing at least equallto thewidth!V of the collar plus the thickness -of thecap.

'7. A nipple for mounting upon a bottle by 65 means of a cap, saidnipple having a neckportion at its open end, a thickenedv shoulder portion at the top end of the neckv portion Yextending downwardly and outwardly' and a collarvportion at 70,A

the lower end of the neck portion extendingyoutwardlytherefromto provide a portion for'clamping to the top ofa bottle neck, said neck' portion being slightly longer than :the width ofthescollar portion and: said;collar portion being-bendable up v;

against the neck portion for insertion through an aperture in a securing cap.

8. A nipple having a neck portion at its open end, a. shoulder portion at the top end of the neck portion and a collar portion at the lower end of the neck portion, said collar portion being comparatively thin whereby it may be folded back against the neck portion and said shoulder portion being thick to prevent collapsing of the nipple, the length of the neck portion between the shoulder portion and the collar being somewhat greater than the width of the collar.

9. A nipple having a neck portion at the open end thereof, a shoulder portion at the top of the neck portion extending outwardly and downwardly therefrom and a collar portion at the lower end of the neck portion extending outwardly therefrom for engagement with the top of a bottle neck, said collar portion having an annular groove in the lower surface thereof opposite its connection to the neck portion of the nipple, the length of the neck portion between collar portion and said shoulder portion being somewhat greater than the width of the collar portion.

10. A nipple having a neck portion at the open end thereof, a shoulder portion at the top of the neck portion and a collar portion at the lower end of the neck portion extending outwardly 10 material than the remainder thereof whereby to l5 avoid collapsing of the neck portion. x

ABE HERSTEIN. 

